pkg:Go/github.com/mattermost/mattermost-server/v6
204 total CVEsCRITICAL5HIGH14MEDIUM134LOW51
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All known vulnerabilities
- CRITICAL9.9CVE-2025-12421Mattermost fails to to verify the token used during code exchange in github.com/mattermost/mattermost-serverfrom 0
- CRITICAL9.9CVE-2025-12419Mattermost fails to properly validate OAuth state tokens during OpenID Connect authenticationfrom 0
- CRITICAL9.9CVE-2025-4981Mattermost allows authenticated users to write files to arbitrary locations in github.com/mattermost/mattermost-serverfrom 0
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- >= 6.4.0, < 6.5.0
- >= 6.4.0, < 6.5.0
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- HIGH8.7CVE-2024-39274Mattermost failed to properly validate that the channel that comes from the sync message is a shared channelfrom 0
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- HIGH8.1CVE-2025-58075Mattermost has a Missing Authorization vulnerability in github.com/mattermost/mattermost-serverfrom 0
- HIGH8.0CVE-2025-9079Mattermost Path Traversal vulnerability in github.com/mattermost/mattermost-serverfrom 0
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- HIGH7.4CVE-2024-36492Mattermost failed to disallow the modification of local users when syncing users in shared channelsfrom 0
- HIGH7.2CVE-2025-14273Mattermost with Jira plugin enabled has Incorrect Implementation of Authentication Algorithm in github.com/mattermost/mattermost-plugin-jirafrom 0
- from 0, < 7.8.14
- MEDIUM6.8CVE-2025-8023Mattermost Fails to Sanitize Path Traversal Sequences in github.com/mattermost/mattermost-serverfrom 0
- MEDIUM6.8CVE-2025-8023Mattermost Fails to Sanitize Path Traversal Sequences in github.com/mattermost/mattermost-serverfrom 0, <= 6.7.2
- MEDIUM6.8CVE-2025-49222Mattermost Fails to Validate Remote Cluster Upload Sessions in github.com/mattermost/mattermost-serverfrom 0, <= 5.7.2
- MEDIUM6.8CVE-2025-36530Mattermost Fails to Validate File Paths in github.com/mattermost/mattermost-serverfrom 0
- MEDIUM6.8CVE-2025-49222Mattermost Fails to Validate Remote Cluster Upload Sessions in github.com/mattermost/mattermost-serverfrom 0
- MEDIUM6.8CVE-2025-36530Mattermost Fails to Validate File Paths in github.com/mattermost/mattermost-serverfrom 0, <= 6.7.2
- MEDIUM6.8CVE-2025-6233Mattermost Path Traversal vulnerability in github.com/mattermost/mattermost-serverfrom 0
- MEDIUM6.8CVE-2024-39832Mattermost allows a remote actor to permanently delete local data by abusing dangerous error handlingfrom 0
- MEDIUM6.7CVE-2023-4107Mattermost does not validate requesting user permissions before updating admin detailsfrom 0, < 7.8.8
- MEDIUM6.5CVE-2025-55070Mattermost does not enforce MFA on WebSocket connections in github.com/mattermost/mattermost-serverfrom 0
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- MEDIUM6.5CVE-2025-41395Mattermost Playbooks fails to properly validate the props used by the RetrospectivePost custom post typefrom 0
- MEDIUM6.5CVE-2025-35965Mattermost Playbooks fails to validate the uniqueness and quantity of task actionsfrom 0
- MEDIUM6.5CVE-2025-20621Mattermost webapp crash via a crafted post in github.com/mattermost/mattermost-serverfrom 0
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- MEDIUM6.5CVE-2024-54682Mattermost Data Amplification vulnerability in github.com/mattermost/mattermost-serverfrom 0
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- from 0, < 7.8.10
- from 0, < 7.8.10
- >= 6.0.0, < 7.1.6
- >= 7.1.0, < 7.2.0
- from 0, < 6.3.9
- from 0, < 6.3.9, >= 6.4.0, < 6.5.2, >= 6.6.0, < 6.6.2, >= 6.7.0, < 6.7.1
- from 0, < 6.4.2
- from 0, < 6.4.2
- MEDIUM6.3CVE-2023-4106Mattermost fails to check if user is a guest before performing actions on public playbooks>= 7.9.0, < 7.9.6
- MEDIUM6.0CVE-2024-42497Mattermost allows user with systems manager role with read-only access to teams to perform write operations on teamsfrom 0
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- MEDIUM5.5CVE-2024-41144Mattermost allows remote actor to create/update/delete posts in arbitrary channels in github.com/mattermost/mattermost-serverfrom 0
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- MEDIUM5.4CVE-2025-55073Mattermost allows an attacker to edit arbitrary posts via a crafted MSTeams plugin OAuth redirect URLfrom 0
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- MEDIUM5.4CVE-2025-3230Mattermost fails to properly invalidate personal access tokens upon user deactivation in github.com/mattermost/mattermost-serverfrom 0
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- MEDIUM5.4CVE-2025-27933Mattermost allows members with permission to convert public channels to private and convert private to public in github.com/mattermost/mattermost-serverfrom 0
- MEDIUM5.4CVE-2024-47003Mattermost fails to strip `embeds` from `metadata` when broadcasting `posted` eventsfrom 0
- >= 6.0.0, < 7.1.6
- MEDIUM5.4CVE-2023-1774Mattermost fails to properly authentication inviter's permissions to private channel>= 6.0.0, < 7.1.6
- MEDIUM5.3CVE-2026-2456Mattermost fails to limit the size of responses from integration action endpointsfrom 0
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- MEDIUM5.3CVE-2023-6459Mattermost Exposure of Sensitive Information to an Unauthorized Actor vulnerabilityfrom 0, < 7.8.14
- from 0, < 7.8.13
- from 0, < 7.8.12
- >= 6.3.0, < 7.1.6
- MEDIUM4.9CVE-2025-11794Mattermost allows system administrators to access password hashes and MFA secrets in github.com/mattermost/mattermost-serverfrom 0
- MEDIUM4.9CVE-2025-8402Mattermost has Potential Server Crash due to Unvalidated Import Data in github.com/mattermost/mattermost-serverfrom 0, <= 6.7.2
- MEDIUM4.9CVE-2025-8402Mattermost has Potential Server Crash due to Unvalidated Import Data in github.com/mattermost/mattermost-serverfrom 0
- >= 5.4.0-rc1, < 7.8.12
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- MEDIUM4.7CVE-2024-29221Mattermost Server Improper Access Control in github.com/mattermost/mattermost-serverfrom 0
- MEDIUM4.6CVE-2024-46872Mattermost Server Path Traversal vulnerability that leads to Cross-Site Request Forgeryfrom 0
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- from 0, < 6.5.0
- from 0, < 6.5.0
- from 0, < 7.8.8
- MEDIUM4.3CVE-2026-2455Mattermost fails to canonicalize IPv4-mapped IPv6 addresses before reserved IP validationfrom 0
- MEDIUM4.3CVE-2026-24692Mattermost fails to properly enforce read permissions in search API endpointsfrom 0
- MEDIUM4.3CVE-2026-21386Mattermost fails to use consistent error responses when handling the /mute commandfrom 0
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- MEDIUM4.3CVE-2026-2578Mattermost fails to preserve the redacted state of burn-on-read posts during deletionfrom 0
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- MEDIUM4.3CVE-2026-2458Mattermost allows a removed team member to enumerate all public channels within a private teamfrom 0
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- MEDIUM4.3CVE-2025-14350Mattermost fails to properly validate team membership when processing channel mentionsfrom 0
- MEDIUM4.3CVE-2025-13767Mattermost doesn't validate user channel membership when attaching Mattermost posts as comments to Jira issuesfrom 0
- MEDIUM4.3CVE-2025-13324Mattermost has an Invite Token Replay Vulnerability via Channel Membership Manipulationfrom 0
- MEDIUM4.3CVE-2025-12756Mattermost fails to validate user permissions when deleting comments in Boards in github.com/mattermost/mattermostfrom 0
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- MEDIUM4.3CVE-2025-11776Mattermost fails to properly restrict access to archived channel search API in github.com/mattermost/mattermostfrom 0
- MEDIUM4.3CVE-2025-11776Mattermost fails to properly restrict access to archived channel search API in github.com/mattermost/mattermostfrom 0, < 5.3.2-0.20250815165020-c8d66301415d
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- MEDIUM4.3CVE-2025-6465Mattermost Fails to Sanitize File Names in github.com/mattermost/mattermost-serverfrom 0
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- from 0, <= 6.7.2
- MEDIUM4.3CVE-2025-47871Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermost-serverfrom 0
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- MEDIUM4.3CVE-2025-3227Mattermost allows unauthorized channel member management through playbook runs in github.com/mattermost/mattermost-serverfrom 0
- MEDIUM4.3CVE-2025-2527Mattermost Fails to Verify User's Permissions When Accessing Groups in github.com/mattermost/mattermost-serverfrom 0
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- MEDIUM4.3CVE-2025-24920Mattermost Fails to Restrict Bookmark Creation and Updates in Archived Channels in github.com/mattermost/mattermost-serverfrom 0
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- MEDIUM4.3CVE-2025-24526Mattermost fails to restrict channel export of archived channels in github.com/mattermost/mattermost-serverfrom 0
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- MEDIUM4.3CVE-2024-47401Mattermost Server vulnerable to application crash from attacker-generated large responsefrom 0
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- MEDIUM4.3CVE-2024-39839Mattermost allows a user on a remote to set their remote username prop to an arbitrary string in github.com/mattermost/mattermost-serverfrom 0
- MEDIUM4.3CVE-2024-28949Mattermost Server doesn't limit the number of user preferences in github.com/mattermost/mattermost-serverfrom 0
- MEDIUM4.3CVE-2024-1953Mattermost fails to limit the number of role names in github.com/mattermost/mattermost-serverfrom 0
- MEDIUM4.3CVE-2024-1942Mattermost allows attackers access to posts in channels they are not a member of in github.com/mattermost/mattermost-serverfrom 0
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- MEDIUM4.3CVE-2024-1888Mattermost fails to check the "invite_guest" permission in github.com/mattermost/mattermost-serverfrom 0
- MEDIUM4.3CVE-2024-1402Mattermost vulnerable to denial of service via large number of emoji reactionsfrom 0
- from 0, < 7.8.10
- MEDIUM4.3CVE-2023-48732Mattermost notified all users in the channel when using WebSockets to respond individuallyfrom 0
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- MEDIUM4.3CVE-2023-48732Mattermost notified all users in the channel when using WebSockets to respond individuallyfrom 0, < 8.1.7
- from 0, < 7.8.13
- MEDIUM4.3CVE-2023-45223Mattermost Exposure of Sensitive Information to an Unauthorized Actor vulnerabilityfrom 0, < 7.8.13
- from 0, < 7.8.13
- MEDIUM4.3CVE-2023-43754Mattermost Exposure of Sensitive Information to an Unauthorized Actor vulnerabilityfrom 0, < 7.8.13
- from 0, < 7.8.13
- from 0, < 7.8.13
- from 0, < 7.8.13
- from 0, < 7.8.12
- from 0, < 7.8.10
- >= 7.10.0, < 7.10.1
- MEDIUM4.3CVE-2022-1332Improper Privilege Management in Mattermost in github.com/mattermost/mattermost-server>= 6.4.0, < 6.4.2
- MEDIUM4.3CVE-2022-1332Improper Privilege Management in Mattermost in github.com/mattermost/mattermost-server>= 6.0.0, < 6.2.5, >= 6.3.0, < 6.3.5, >= 6.4.0, < 6.4.2
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- MEDIUM4.1CVE-2025-64641Mattermost doesn't verify that post actions invoking `/share-issue-publicly` were created by the Jira pluginfrom 0
- MEDIUM4.1CVE-2025-4573Mattermost allows authenticated administrator to execute LDAP search filter injectionfrom 0
- MEDIUM4.1CVE-2024-41162Mattermost allows a remote actor to make an arbitrary local channel read-only in github.com/mattermost/mattermost-serverfrom 0
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- from 0, <= 6.7.2
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- LOW3.8CVE-2024-39837Mattermost did not properly restrict channel creation in github.com/mattermost/mattermost-serverfrom 0, < 6.0.0-20240626164322-c758cecaf30c
- LOW3.8CVE-2024-39837Mattermost did not properly restrict channel creation in github.com/mattermost/mattermost-serverfrom 0
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- LOW3.7CVE-2023-7113Mattermost Cross-site Scripting vulnerability in github.com/mattermost/mattermost-serverfrom 0
- LOW3.5CVE-2025-49810Mattermost Lack of Access Control Validation in github.com/mattermost/mattermost-serverfrom 0
- LOW3.5CVE-2025-47700Mattermost Server SSRF Vulnerability via the Agents Plugin in github.com/mattermost/mattermost-serverfrom 0
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- LOW3.3CVE-2025-27715Mattermost fail to prompt for explicit approval before adding a team admin to a private channelfrom 0
- LOW3.1CVE-2026-22545Mattermost fails to validate user's authentication method when processing account auth type switchfrom 0
- LOW3.1CVE-2025-62690Mattermost has missing redirect URL validation in github.com/mattermost/mattermostfrom 0
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- LOW3.1CVE-2025-41436Mattermost allows regular users to access archived channel content and files in github.com/mattermost/mattermost-serverfrom 0
- LOW3.1CVE-2025-11777Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermostfrom 0
- LOW3.1CVE-2025-11777Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermostfrom 0, < 5.3.2-0.20250905150616-ba86dfc5876b
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- LOW3.1CVE-2025-54499Mattermost has an Observable Timing Discrepancy vulnerability in github.com/mattermost/mattermost-serverfrom 0
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- LOW3.1CVE-2025-9084Mattermost Open Redirect vulnerability in github.com/mattermost/mattermost-serverfrom 0
- LOW3.1CVE-2025-4128Mattermost allows guest users to view information about public teams they are not members of in github.com/mattermost/mattermost-serverfrom 0
- LOW3.1CVE-2025-3611Mattermost fails to properly enforce access control restrictions for System Manager rolesfrom 0
- LOW3.1CVE-2025-1792Mattermost fails to properly enforce access controls for guest users in github.com/mattermost/mattermost-serverfrom 0
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- LOW3.1CVE-2025-2424Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermost-serverfrom 0
- LOW3.1CVE-2025-1412Mattermost fails to invalidate all active sessions when converting a user to a bot in github.com/mattermost/mattermost-serverfrom 0
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- LOW3.1CVE-2024-28053Mattermost Server Resource Exhaustion in github.com/mattermost/mattermost-serverfrom 0, < 0.0.0-20240209181221-674f549daf0e
- LOW3.1CVE-2024-28053Mattermost Server Resource Exhaustion in github.com/mattermost/mattermost-serverfrom 0
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- from 0, < 7.8.13
- >= 7.9.0, < 7.9.6
- LOW3.0CVE-2025-13352Mattermost GitHub Plugin Bot Identity Validation Bypass Allows Arbitrary GitHub Reaction Injection in github.com/mattermost/mattermostfrom 0
- LOW3.0CVE-2025-55074Mattermost allows other users to determine when users had read channels via channel member objectsfrom 0
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- LOW2.7CVE-2024-40884Mattermost allows team admin user without "Add Team Members" permission to disable invite URLfrom 0
- LOW2.7CVE-2024-41926Mattermost allows remote actor to set arbitrary RemoteId values for synced usersfrom 0
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- from 0, < 7.8.10
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